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ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / drivers / infiniband / ulp / ipoib / ipoib_main.c
blob2442090ac8d1dbfe083bfca69d46adc2b484c157
1 /*
2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 * $Id: ipoib_main.c 1377 2004-12-23 19:57:12Z roland $
35 */
36
37 #include "ipoib.h"
38
39 #include <linux/module.h>
40
41 #include <linux/init.h>
42 #include <linux/slab.h>
43 #include <linux/kernel.h>
44 #include <linux/vmalloc.h>
45
46 #include <linux/if_arp.h> /* For ARPHRD_xxx */
47
48 #include <linux/ip.h>
49 #include <linux/in.h>
50
51 #include <net/dst.h>
52
53 MODULE_AUTHOR("Roland Dreier");
54 MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
55 MODULE_LICENSE("Dual BSD/GPL");
56
57 int ipoib_sendq_size __read_mostly = IPOIB_TX_RING_SIZE;
58 int ipoib_recvq_size __read_mostly = IPOIB_RX_RING_SIZE;
59
60 module_param_named(send_queue_size, ipoib_sendq_size, int, 0444);
61 MODULE_PARM_DESC(send_queue_size, "Number of descriptors in send queue");
62 module_param_named(recv_queue_size, ipoib_recvq_size, int, 0444);
63 MODULE_PARM_DESC(recv_queue_size, "Number of descriptors in receive queue");
64
65 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
66 int ipoib_debug_level;
67
68 module_param_named(debug_level, ipoib_debug_level, int, 0644);
69 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
70 #endif
71
72 struct ipoib_path_iter {
73 struct net_device *dev;
74 struct ipoib_path path;
75 };
76
77 static const u8 ipv4_bcast_addr[] = {
78 0x00, 0xff, 0xff, 0xff,
79 0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
80 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
81 };
82
83 struct workqueue_struct *ipoib_workqueue;
84
85 struct ib_sa_client ipoib_sa_client;
86
87 static void ipoib_add_one(struct ib_device *device);
88 static void ipoib_remove_one(struct ib_device *device);
89
90 static struct ib_client ipoib_client = {
91 .name = "ipoib",
92 .add = ipoib_add_one,
93 .remove = ipoib_remove_one
94 };
95
96 int ipoib_open(struct net_device *dev)
97 {
98 struct ipoib_dev_priv *priv = netdev_priv(dev);
99
100 ipoib_dbg(priv, "bringing up interface\n");
101
102 napi_enable(&priv->napi);
103 set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
104
105 if (ipoib_pkey_dev_delay_open(dev))
106 return 0;
107
108 if (ipoib_ib_dev_open(dev)) {
109 napi_disable(&priv->napi);
110 return -EINVAL;
111 }
112
113 if (ipoib_ib_dev_up(dev)) {
114 ipoib_ib_dev_stop(dev, 1);
115 napi_disable(&priv->napi);
116 return -EINVAL;
117 }
118
119 if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
120 struct ipoib_dev_priv *cpriv;
121
122 /* Bring up any child interfaces too */
123 mutex_lock(&priv->vlan_mutex);
124 list_for_each_entry(cpriv, &priv->child_intfs, list) {
125 int flags;
126
127 flags = cpriv->dev->flags;
128 if (flags & IFF_UP)
129 continue;
130
131 dev_change_flags(cpriv->dev, flags | IFF_UP);
132 }
133 mutex_unlock(&priv->vlan_mutex);
134 }
135
136 netif_start_queue(dev);
137
138 return 0;
139 }
140
141 static int ipoib_stop(struct net_device *dev)
142 {
143 struct ipoib_dev_priv *priv = netdev_priv(dev);
144
145 ipoib_dbg(priv, "stopping interface\n");
146
147 clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
148 napi_disable(&priv->napi);
149
150 netif_stop_queue(dev);
151
152 /*
153 * Now flush workqueue to make sure a scheduled task doesn't
154 * bring our internal state back up.
155 */
156 flush_workqueue(ipoib_workqueue);
157
158 ipoib_ib_dev_down(dev, 1);
159 ipoib_ib_dev_stop(dev, 1);
160
161 if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
162 struct ipoib_dev_priv *cpriv;
163
164 /* Bring down any child interfaces too */
165 mutex_lock(&priv->vlan_mutex);
166 list_for_each_entry(cpriv, &priv->child_intfs, list) {
167 int flags;
168
169 flags = cpriv->dev->flags;
170 if (!(flags & IFF_UP))
171 continue;
172
173 dev_change_flags(cpriv->dev, flags & ~IFF_UP);
174 }
175 mutex_unlock(&priv->vlan_mutex);
176 }
177
178 return 0;
179 }
180
181 static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
182 {
183 struct ipoib_dev_priv *priv = netdev_priv(dev);
184
185 /* dev->mtu > 2K ==> connected mode */
186 if (ipoib_cm_admin_enabled(dev)) {
187 if (new_mtu > ipoib_cm_max_mtu(dev))
188 return -EINVAL;
189
190 if (new_mtu > priv->mcast_mtu)
191 ipoib_warn(priv, "mtu > %d will cause multicast packet drops.\n",
192 priv->mcast_mtu);
193
194 dev->mtu = new_mtu;
195 return 0;
196 }
197
198 if (new_mtu > IPOIB_UD_MTU(priv->max_ib_mtu))
199 return -EINVAL;
200
201 priv->admin_mtu = new_mtu;
202
203 dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
204
205 return 0;
206 }
207
208 static struct ipoib_path *__path_find(struct net_device *dev, void *gid)
209 {
210 struct ipoib_dev_priv *priv = netdev_priv(dev);
211 struct rb_node *n = priv->path_tree.rb_node;
212 struct ipoib_path *path;
213 int ret;
214
215 while (n) {
216 path = rb_entry(n, struct ipoib_path, rb_node);
217
218 ret = memcmp(gid, path->pathrec.dgid.raw,
219 sizeof (union ib_gid));
220
221 if (ret < 0)
222 n = n->rb_left;
223 else if (ret > 0)
224 n = n->rb_right;
225 else
226 return path;
227 }
228
229 return NULL;
230 }
231
232 static int __path_add(struct net_device *dev, struct ipoib_path *path)
233 {
234 struct ipoib_dev_priv *priv = netdev_priv(dev);
235 struct rb_node **n = &priv->path_tree.rb_node;
236 struct rb_node *pn = NULL;
237 struct ipoib_path *tpath;
238 int ret;
239
240 while (*n) {
241 pn = *n;
242 tpath = rb_entry(pn, struct ipoib_path, rb_node);
243
244 ret = memcmp(path->pathrec.dgid.raw, tpath->pathrec.dgid.raw,
245 sizeof (union ib_gid));
246 if (ret < 0)
247 n = &pn->rb_left;
248 else if (ret > 0)
249 n = &pn->rb_right;
250 else
251 return -EEXIST;
252 }
253
254 rb_link_node(&path->rb_node, pn, n);
255 rb_insert_color(&path->rb_node, &priv->path_tree);
256
257 list_add_tail(&path->list, &priv->path_list);
258
259 return 0;
260 }
261
262 static void path_free(struct net_device *dev, struct ipoib_path *path)
263 {
264 struct ipoib_dev_priv *priv = netdev_priv(dev);
265 struct ipoib_neigh *neigh, *tn;
266 struct sk_buff *skb;
267 unsigned long flags;
268
269 while ((skb = __skb_dequeue(&path->queue)))
270 dev_kfree_skb_irq(skb);
271
272 spin_lock_irqsave(&priv->lock, flags);
273
274 list_for_each_entry_safe(neigh, tn, &path->neigh_list, list) {
275 /*
276 * It's safe to call ipoib_put_ah() inside priv->lock
277 * here, because we know that path->ah will always
278 * hold one more reference, so ipoib_put_ah() will
279 * never do more than decrement the ref count.
280 */
281 if (neigh->ah)
282 ipoib_put_ah(neigh->ah);
283
284 ipoib_neigh_free(dev, neigh);
285 }
286
287 spin_unlock_irqrestore(&priv->lock, flags);
288
289 if (path->ah)
290 ipoib_put_ah(path->ah);
291
292 kfree(path);
293 }
294
295 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
296
297 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev)
298 {
299 struct ipoib_path_iter *iter;
300
301 iter = kmalloc(sizeof *iter, GFP_KERNEL);
302 if (!iter)
303 return NULL;
304
305 iter->dev = dev;
306 memset(iter->path.pathrec.dgid.raw, 0, 16);
307
308 if (ipoib_path_iter_next(iter)) {
309 kfree(iter);
310 return NULL;
311 }
312
313 return iter;
314 }
315
316 int ipoib_path_iter_next(struct ipoib_path_iter *iter)
317 {
318 struct ipoib_dev_priv *priv = netdev_priv(iter->dev);
319 struct rb_node *n;
320 struct ipoib_path *path;
321 int ret = 1;
322
323 spin_lock_irq(&priv->lock);
324
325 n = rb_first(&priv->path_tree);
326
327 while (n) {
328 path = rb_entry(n, struct ipoib_path, rb_node);
329
330 if (memcmp(iter->path.pathrec.dgid.raw, path->pathrec.dgid.raw,
331 sizeof (union ib_gid)) < 0) {
332 iter->path = *path;
333 ret = 0;
334 break;
335 }
336
337 n = rb_next(n);
338 }
339
340 spin_unlock_irq(&priv->lock);
341
342 return ret;
343 }
344
345 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
346 struct ipoib_path *path)
347 {
348 *path = iter->path;
349 }
350
351 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
352
353 void ipoib_flush_paths(struct net_device *dev)
354 {
355 struct ipoib_dev_priv *priv = netdev_priv(dev);
356 struct ipoib_path *path, *tp;
357 LIST_HEAD(remove_list);
358
359 spin_lock_irq(&priv->tx_lock);
360 spin_lock(&priv->lock);
361
362 list_splice_init(&priv->path_list, &remove_list);
363
364 list_for_each_entry(path, &remove_list, list)
365 rb_erase(&path->rb_node, &priv->path_tree);
366
367 list_for_each_entry_safe(path, tp, &remove_list, list) {
368 if (path->query)
369 ib_sa_cancel_query(path->query_id, path->query);
370 spin_unlock(&priv->lock);
371 spin_unlock_irq(&priv->tx_lock);
372 wait_for_completion(&path->done);
373 path_free(dev, path);
374 spin_lock_irq(&priv->tx_lock);
375 spin_lock(&priv->lock);
376 }
377 spin_unlock(&priv->lock);
378 spin_unlock_irq(&priv->tx_lock);
379 }
380
381 static void path_rec_completion(int status,
382 struct ib_sa_path_rec *pathrec,
383 void *path_ptr)
384 {
385 struct ipoib_path *path = path_ptr;
386 struct net_device *dev = path->dev;
387 struct ipoib_dev_priv *priv = netdev_priv(dev);
388 struct ipoib_ah *ah = NULL;
389 struct ipoib_neigh *neigh, *tn;
390 struct sk_buff_head skqueue;
391 struct sk_buff *skb;
392 unsigned long flags;
393
394 if (!status)
395 ipoib_dbg(priv, "PathRec LID 0x%04x for GID " IPOIB_GID_FMT "\n",
396 be16_to_cpu(pathrec->dlid), IPOIB_GID_ARG(pathrec->dgid));
397 else
398 ipoib_dbg(priv, "PathRec status %d for GID " IPOIB_GID_FMT "\n",
399 status, IPOIB_GID_ARG(path->pathrec.dgid));
400
401 skb_queue_head_init(&skqueue);
402
403 if (!status) {
404 struct ib_ah_attr av;
405
406 if (!ib_init_ah_from_path(priv->ca, priv->port, pathrec, &av))
407 ah = ipoib_create_ah(dev, priv->pd, &av);
408 }
409
410 spin_lock_irqsave(&priv->lock, flags);
411
412 path->ah = ah;
413
414 if (ah) {
415 path->pathrec = *pathrec;
416
417 ipoib_dbg(priv, "created address handle %p for LID 0x%04x, SL %d\n",
418 ah, be16_to_cpu(pathrec->dlid), pathrec->sl);
419
420 while ((skb = __skb_dequeue(&path->queue)))
421 __skb_queue_tail(&skqueue, skb);
422
423 list_for_each_entry_safe(neigh, tn, &path->neigh_list, list) {
424 kref_get(&path->ah->ref);
425 neigh->ah = path->ah;
426 memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw,
427 sizeof(union ib_gid));
428
429 if (ipoib_cm_enabled(dev, neigh->neighbour)) {
430 if (!ipoib_cm_get(neigh))
431 ipoib_cm_set(neigh, ipoib_cm_create_tx(dev,
432 path,
433 neigh));
434 if (!ipoib_cm_get(neigh)) {
435 list_del(&neigh->list);
436 if (neigh->ah)
437 ipoib_put_ah(neigh->ah);
438 ipoib_neigh_free(dev, neigh);
439 continue;
440 }
441 }
442
443 while ((skb = __skb_dequeue(&neigh->queue)))
444 __skb_queue_tail(&skqueue, skb);
445 }
446 }
447
448 path->query = NULL;
449 complete(&path->done);
450
451 spin_unlock_irqrestore(&priv->lock, flags);
452
453 while ((skb = __skb_dequeue(&skqueue))) {
454 skb->dev = dev;
455 if (dev_queue_xmit(skb))
456 ipoib_warn(priv, "dev_queue_xmit failed "
457 "to requeue packet\n");
458 }
459 }
460
461 static struct ipoib_path *path_rec_create(struct net_device *dev, void *gid)
462 {
463 struct ipoib_dev_priv *priv = netdev_priv(dev);
464 struct ipoib_path *path;
465
466 if (!priv->broadcast)
467 return NULL;
468
469 path = kzalloc(sizeof *path, GFP_ATOMIC);
470 if (!path)
471 return NULL;
472
473 path->dev = dev;
474
475 skb_queue_head_init(&path->queue);
476
477 INIT_LIST_HEAD(&path->neigh_list);
478
479 memcpy(path->pathrec.dgid.raw, gid, sizeof (union ib_gid));
480 path->pathrec.sgid = priv->local_gid;
481 path->pathrec.pkey = cpu_to_be16(priv->pkey);
482 path->pathrec.numb_path = 1;
483 path->pathrec.traffic_class = priv->broadcast->mcmember.traffic_class;
484
485 return path;
486 }
487
488 static int path_rec_start(struct net_device *dev,
489 struct ipoib_path *path)
490 {
491 struct ipoib_dev_priv *priv = netdev_priv(dev);
492
493 ipoib_dbg(priv, "Start path record lookup for " IPOIB_GID_FMT "\n",
494 IPOIB_GID_ARG(path->pathrec.dgid));
495
496 init_completion(&path->done);
497
498 path->query_id =
499 ib_sa_path_rec_get(&ipoib_sa_client, priv->ca, priv->port,
500 &path->pathrec,
501 IB_SA_PATH_REC_DGID |
502 IB_SA_PATH_REC_SGID |
503 IB_SA_PATH_REC_NUMB_PATH |
504 IB_SA_PATH_REC_TRAFFIC_CLASS |
505 IB_SA_PATH_REC_PKEY,
506 1000, GFP_ATOMIC,
507 path_rec_completion,
508 path, &path->query);
509 if (path->query_id < 0) {
510 ipoib_warn(priv, "ib_sa_path_rec_get failed\n");
511 path->query = NULL;
512 return path->query_id;
513 }
514
515 return 0;
516 }
517
518 static void neigh_add_path(struct sk_buff *skb, struct net_device *dev)
519 {
520 struct ipoib_dev_priv *priv = netdev_priv(dev);
521 struct ipoib_path *path;
522 struct ipoib_neigh *neigh;
523
524 neigh = ipoib_neigh_alloc(skb->dst->neighbour, skb->dev);
525 if (!neigh) {
526 ++dev->stats.tx_dropped;
527 dev_kfree_skb_any(skb);
528 return;
529 }
530
531 /*
532 * We can only be called from ipoib_start_xmit, so we're
533 * inside tx_lock -- no need to save/restore flags.
534 */
535 spin_lock(&priv->lock);
536
537 path = __path_find(dev, skb->dst->neighbour->ha + 4);
538 if (!path) {
539 path = path_rec_create(dev, skb->dst->neighbour->ha + 4);
540 if (!path)
541 goto err_path;
542
543 __path_add(dev, path);
544 }
545
546 list_add_tail(&neigh->list, &path->neigh_list);
547
548 if (path->ah) {
549 kref_get(&path->ah->ref);
550 neigh->ah = path->ah;
551 memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw,
552 sizeof(union ib_gid));
553
554 if (ipoib_cm_enabled(dev, neigh->neighbour)) {
555 if (!ipoib_cm_get(neigh))
556 ipoib_cm_set(neigh, ipoib_cm_create_tx(dev, path, neigh));
557 if (!ipoib_cm_get(neigh)) {
558 list_del(&neigh->list);
559 if (neigh->ah)
560 ipoib_put_ah(neigh->ah);
561 ipoib_neigh_free(dev, neigh);
562 goto err_drop;
563 }
564 if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
565 __skb_queue_tail(&neigh->queue, skb);
566 else {
567 ipoib_warn(priv, "queue length limit %d. Packet drop.\n",
568 skb_queue_len(&neigh->queue));
569 goto err_drop;
570 }
571 } else
572 ipoib_send(dev, skb, path->ah, IPOIB_QPN(skb->dst->neighbour->ha));
573 } else {
574 neigh->ah = NULL;
575
576 if (!path->query && path_rec_start(dev, path))
577 goto err_list;
578
579 __skb_queue_tail(&neigh->queue, skb);
580 }
581
582 spin_unlock(&priv->lock);
583 return;
584
585 err_list:
586 list_del(&neigh->list);
587
588 err_path:
589 ipoib_neigh_free(dev, neigh);
590 err_drop:
591 ++dev->stats.tx_dropped;
592 dev_kfree_skb_any(skb);
593
594 spin_unlock(&priv->lock);
595 }
596
597 static void ipoib_path_lookup(struct sk_buff *skb, struct net_device *dev)
598 {
599 struct ipoib_dev_priv *priv = netdev_priv(skb->dev);
600
601 /* Look up path record for unicasts */
602 if (skb->dst->neighbour->ha[4] != 0xff) {
603 neigh_add_path(skb, dev);
604 return;
605 }
606
607 /* Add in the P_Key for multicasts */
608 skb->dst->neighbour->ha[8] = (priv->pkey >> 8) & 0xff;
609 skb->dst->neighbour->ha[9] = priv->pkey & 0xff;
610 ipoib_mcast_send(dev, skb->dst->neighbour->ha + 4, skb);
611 }
612
613 static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
614 struct ipoib_pseudoheader *phdr)
615 {
616 struct ipoib_dev_priv *priv = netdev_priv(dev);
617 struct ipoib_path *path;
618
619 /*
620 * We can only be called from ipoib_start_xmit, so we're
621 * inside tx_lock -- no need to save/restore flags.
622 */
623 spin_lock(&priv->lock);
624
625 path = __path_find(dev, phdr->hwaddr + 4);
626 if (!path) {
627 path = path_rec_create(dev, phdr->hwaddr + 4);
628 if (path) {
629 /* put pseudoheader back on for next time */
630 skb_push(skb, sizeof *phdr);
631 __skb_queue_tail(&path->queue, skb);
632
633 if (path_rec_start(dev, path)) {
634 spin_unlock(&priv->lock);
635 path_free(dev, path);
636 return;
637 } else
638 __path_add(dev, path);
639 } else {
640 ++dev->stats.tx_dropped;
641 dev_kfree_skb_any(skb);
642 }
643
644 spin_unlock(&priv->lock);
645 return;
646 }
647
648 if (path->ah) {
649 ipoib_dbg(priv, "Send unicast ARP to %04x\n",
650 be16_to_cpu(path->pathrec.dlid));
651
652 ipoib_send(dev, skb, path->ah, IPOIB_QPN(phdr->hwaddr));
653 } else if ((path->query || !path_rec_start(dev, path)) &&
654 skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
655 /* put pseudoheader back on for next time */
656 skb_push(skb, sizeof *phdr);
657 __skb_queue_tail(&path->queue, skb);
658 } else {
659 ++dev->stats.tx_dropped;
660 dev_kfree_skb_any(skb);
661 }
662
663 spin_unlock(&priv->lock);
664 }
665
666 static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev)
667 {
668 struct ipoib_dev_priv *priv = netdev_priv(dev);
669 struct ipoib_neigh *neigh;
670 unsigned long flags;
671
672 if (unlikely(!spin_trylock_irqsave(&priv->tx_lock, flags)))
673 return NETDEV_TX_LOCKED;
674
675 if (likely(skb->dst && skb->dst->neighbour)) {
676 if (unlikely(!*to_ipoib_neigh(skb->dst->neighbour))) {
677 ipoib_path_lookup(skb, dev);
678 goto out;
679 }
680
681 neigh = *to_ipoib_neigh(skb->dst->neighbour);
682
683 if (neigh->ah)
684 if (unlikely((memcmp(&neigh->dgid.raw,
685 skb->dst->neighbour->ha + 4,
686 sizeof(union ib_gid))) ||
687 (neigh->dev != dev))) {
688 spin_lock(&priv->lock);
689 /*
690 * It's safe to call ipoib_put_ah() inside
691 * priv->lock here, because we know that
692 * path->ah will always hold one more reference,
693 * so ipoib_put_ah() will never do more than
694 * decrement the ref count.
695 */
696 ipoib_put_ah(neigh->ah);
697 list_del(&neigh->list);
698 ipoib_neigh_free(dev, neigh);
699 spin_unlock(&priv->lock);
700 ipoib_path_lookup(skb, dev);
701 goto out;
702 }
703
704 if (ipoib_cm_get(neigh)) {
705 if (ipoib_cm_up(neigh)) {
706 ipoib_cm_send(dev, skb, ipoib_cm_get(neigh));
707 goto out;
708 }
709 } else if (neigh->ah) {
710 ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(skb->dst->neighbour->ha));
711 goto out;
712 }
713
714 if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
715 spin_lock(&priv->lock);
716 __skb_queue_tail(&neigh->queue, skb);
717 spin_unlock(&priv->lock);
718 } else {
719 ++dev->stats.tx_dropped;
720 dev_kfree_skb_any(skb);
721 }
722 } else {
723 struct ipoib_pseudoheader *phdr =
724 (struct ipoib_pseudoheader *) skb->data;
725 skb_pull(skb, sizeof *phdr);
726
727 if (phdr->hwaddr[4] == 0xff) {
728 /* Add in the P_Key for multicast*/
729 phdr->hwaddr[8] = (priv->pkey >> 8) & 0xff;
730 phdr->hwaddr[9] = priv->pkey & 0xff;
731
732 ipoib_mcast_send(dev, phdr->hwaddr + 4, skb);
733 } else {
734 /* unicast GID -- should be ARP or RARP reply */
735
736 if ((be16_to_cpup((__be16 *) skb->data) != ETH_P_ARP) &&
737 (be16_to_cpup((__be16 *) skb->data) != ETH_P_RARP)) {
738 ipoib_warn(priv, "Unicast, no %s: type %04x, QPN %06x "
739 IPOIB_GID_FMT "\n",
740 skb->dst ? "neigh" : "dst",
741 be16_to_cpup((__be16 *) skb->data),
742 IPOIB_QPN(phdr->hwaddr),
743 IPOIB_GID_RAW_ARG(phdr->hwaddr + 4));
744 dev_kfree_skb_any(skb);
745 ++dev->stats.tx_dropped;
746 goto out;
747 }
748
749 unicast_arp_send(skb, dev, phdr);
750 }
751 }
752
753 out:
754 spin_unlock_irqrestore(&priv->tx_lock, flags);
755
756 return NETDEV_TX_OK;
757 }
758
759 static void ipoib_timeout(struct net_device *dev)
760 {
761 struct ipoib_dev_priv *priv = netdev_priv(dev);
762
763 ipoib_warn(priv, "transmit timeout: latency %d msecs\n",
764 jiffies_to_msecs(jiffies - dev->trans_start));
765 ipoib_warn(priv, "queue stopped %d, tx_head %u, tx_tail %u\n",
766 netif_queue_stopped(dev),
767 priv->tx_head, priv->tx_tail);
768 /* XXX reset QP, etc. */
769 }
770
771 static int ipoib_hard_header(struct sk_buff *skb,
772 struct net_device *dev,
773 unsigned short type,
774 const void *daddr, const void *saddr, unsigned len)
775 {
776 struct ipoib_header *header;
777
778 header = (struct ipoib_header *) skb_push(skb, sizeof *header);
779
780 header->proto = htons(type);
781 header->reserved = 0;
782
783 /*
784 * If we don't have a neighbour structure, stuff the
785 * destination address onto the front of the skb so we can
786 * figure out where to send the packet later.
787 */
788 if ((!skb->dst || !skb->dst->neighbour) && daddr) {
789 struct ipoib_pseudoheader *phdr =
790 (struct ipoib_pseudoheader *) skb_push(skb, sizeof *phdr);
791 memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
792 }
793
794 return 0;
795 }
796
797 static void ipoib_set_mcast_list(struct net_device *dev)
798 {
799 struct ipoib_dev_priv *priv = netdev_priv(dev);
800
801 if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) {
802 ipoib_dbg(priv, "IPOIB_FLAG_OPER_UP not set");
803 return;
804 }
805
806 queue_work(ipoib_workqueue, &priv->restart_task);
807 }
808
809 static void ipoib_neigh_cleanup(struct neighbour *n)
810 {
811 struct ipoib_neigh *neigh;
812 struct ipoib_dev_priv *priv = netdev_priv(n->dev);
813 unsigned long flags;
814 struct ipoib_ah *ah = NULL;
815
816 neigh = *to_ipoib_neigh(n);
817 if (neigh)
818 priv = netdev_priv(neigh->dev);
819 else
820 return;
821 ipoib_dbg(priv,
822 "neigh_cleanup for %06x " IPOIB_GID_FMT "\n",
823 IPOIB_QPN(n->ha),
824 IPOIB_GID_RAW_ARG(n->ha + 4));
825
826 spin_lock_irqsave(&priv->lock, flags);
827
828 if (neigh->ah)
829 ah = neigh->ah;
830 list_del(&neigh->list);
831 ipoib_neigh_free(n->dev, neigh);
832
833 spin_unlock_irqrestore(&priv->lock, flags);
834
835 if (ah)
836 ipoib_put_ah(ah);
837 }
838
839 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour,
840 struct net_device *dev)
841 {
842 struct ipoib_neigh *neigh;
843
844 neigh = kmalloc(sizeof *neigh, GFP_ATOMIC);
845 if (!neigh)
846 return NULL;
847
848 neigh->neighbour = neighbour;
849 neigh->dev = dev;
850 *to_ipoib_neigh(neighbour) = neigh;
851 skb_queue_head_init(&neigh->queue);
852 ipoib_cm_set(neigh, NULL);
853
854 return neigh;
855 }
856
857 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh)
858 {
859 struct sk_buff *skb;
860 *to_ipoib_neigh(neigh->neighbour) = NULL;
861 while ((skb = __skb_dequeue(&neigh->queue))) {
862 ++dev->stats.tx_dropped;
863 dev_kfree_skb_any(skb);
864 }
865 if (ipoib_cm_get(neigh))
866 ipoib_cm_destroy_tx(ipoib_cm_get(neigh));
867 kfree(neigh);
868 }
869
870 static int ipoib_neigh_setup_dev(struct net_device *dev, struct neigh_parms *parms)
871 {
872 parms->neigh_cleanup = ipoib_neigh_cleanup;
873
874 return 0;
875 }
876
877 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
878 {
879 struct ipoib_dev_priv *priv = netdev_priv(dev);
880
881 /* Allocate RX/TX "rings" to hold queued skbs */
882 priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring,
883 GFP_KERNEL);
884 if (!priv->rx_ring) {
885 printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n",
886 ca->name, ipoib_recvq_size);
887 goto out;
888 }
889
890 priv->tx_ring = vmalloc(ipoib_sendq_size * sizeof *priv->tx_ring);
891 if (!priv->tx_ring) {
892 printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n",
893 ca->name, ipoib_sendq_size);
894 goto out_rx_ring_cleanup;
895 }
896 memset(priv->tx_ring, 0, ipoib_sendq_size * sizeof *priv->tx_ring);
897
898 /* priv->tx_head, tx_tail & tx_outstanding are already 0 */
899
900 if (ipoib_ib_dev_init(dev, ca, port))
901 goto out_tx_ring_cleanup;
902
903 return 0;
904
905 out_tx_ring_cleanup:
906 vfree(priv->tx_ring);
907
908 out_rx_ring_cleanup:
909 kfree(priv->rx_ring);
910
911 out:
912 return -ENOMEM;
913 }
914
915 void ipoib_dev_cleanup(struct net_device *dev)
916 {
917 struct ipoib_dev_priv *priv = netdev_priv(dev), *cpriv, *tcpriv;
918
919 ipoib_delete_debug_files(dev);
920
921 /* Delete any child interfaces first */
922 list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
923 unregister_netdev(cpriv->dev);
924 ipoib_dev_cleanup(cpriv->dev);
925 free_netdev(cpriv->dev);
926 }
927
928 ipoib_ib_dev_cleanup(dev);
929
930 kfree(priv->rx_ring);
931 vfree(priv->tx_ring);
932
933 priv->rx_ring = NULL;
934 priv->tx_ring = NULL;
935 }
936
937 static const struct header_ops ipoib_header_ops = {
938 .create = ipoib_hard_header,
939 };
940
941 static void ipoib_setup(struct net_device *dev)
942 {
943 struct ipoib_dev_priv *priv = netdev_priv(dev);
944
945 dev->open = ipoib_open;
946 dev->stop = ipoib_stop;
947 dev->change_mtu = ipoib_change_mtu;
948 dev->hard_start_xmit = ipoib_start_xmit;
949 dev->tx_timeout = ipoib_timeout;
950 dev->header_ops = &ipoib_header_ops;
951 dev->set_multicast_list = ipoib_set_mcast_list;
952 dev->neigh_setup = ipoib_neigh_setup_dev;
953
954 ipoib_set_ethtool_ops(dev);
955
956 netif_napi_add(dev, &priv->napi, ipoib_poll, 100);
957
958 dev->watchdog_timeo = HZ;
959
960 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
961
962 /*
963 * We add in INFINIBAND_ALEN to allow for the destination
964 * address "pseudoheader" for skbs without neighbour struct.
965 */
966 dev->hard_header_len = IPOIB_ENCAP_LEN + INFINIBAND_ALEN;
967 dev->addr_len = INFINIBAND_ALEN;
968 dev->type = ARPHRD_INFINIBAND;
969 dev->tx_queue_len = ipoib_sendq_size * 2;
970 dev->features = (NETIF_F_VLAN_CHALLENGED |
971 NETIF_F_LLTX |
972 NETIF_F_HIGHDMA);
973
974 memcpy(dev->broadcast, ipv4_bcast_addr, INFINIBAND_ALEN);
975
976 netif_carrier_off(dev);
977
978 priv->dev = dev;
979
980 spin_lock_init(&priv->lock);
981 spin_lock_init(&priv->tx_lock);
982
983 mutex_init(&priv->mcast_mutex);
984 mutex_init(&priv->vlan_mutex);
985
986 INIT_LIST_HEAD(&priv->path_list);
987 INIT_LIST_HEAD(&priv->child_intfs);
988 INIT_LIST_HEAD(&priv->dead_ahs);
989 INIT_LIST_HEAD(&priv->multicast_list);
990
991 INIT_DELAYED_WORK(&priv->pkey_poll_task, ipoib_pkey_poll);
992 INIT_WORK(&priv->pkey_event_task, ipoib_pkey_event);
993 INIT_DELAYED_WORK(&priv->mcast_task, ipoib_mcast_join_task);
994 INIT_WORK(&priv->flush_task, ipoib_ib_dev_flush);
995 INIT_WORK(&priv->restart_task, ipoib_mcast_restart_task);
996 INIT_DELAYED_WORK(&priv->ah_reap_task, ipoib_reap_ah);
997 }
998
999 struct ipoib_dev_priv *ipoib_intf_alloc(const char *name)
1000 {
1001 struct net_device *dev;
1002
1003 dev = alloc_netdev((int) sizeof (struct ipoib_dev_priv), name,
1004 ipoib_setup);
1005 if (!dev)
1006 return NULL;
1007
1008 return netdev_priv(dev);
1009 }
1010
1011 static ssize_t show_pkey(struct device *dev,
1012 struct device_attribute *attr, char *buf)
1013 {
1014 struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
1015
1016 return sprintf(buf, "0x%04x\n", priv->pkey);
1017 }
1018 static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
1019
1020 static ssize_t show_umcast(struct device *dev,
1021 struct device_attribute *attr, char *buf)
1022 {
1023 struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
1024
1025 return sprintf(buf, "%d\n", test_bit(IPOIB_FLAG_UMCAST, &priv->flags));
1026 }
1027
1028 static ssize_t set_umcast(struct device *dev,
1029 struct device_attribute *attr,
1030 const char *buf, size_t count)
1031 {
1032 struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
1033 unsigned long umcast_val = simple_strtoul(buf, NULL, 0);
1034
1035 if (umcast_val > 0) {
1036 set_bit(IPOIB_FLAG_UMCAST, &priv->flags);
1037 ipoib_warn(priv, "ignoring multicast groups joined directly "
1038 "by userspace\n");
1039 } else
1040 clear_bit(IPOIB_FLAG_UMCAST, &priv->flags);
1041
1042 return count;
1043 }
1044 static DEVICE_ATTR(umcast, S_IWUSR | S_IRUGO, show_umcast, set_umcast);
1045
1046 int ipoib_add_umcast_attr(struct net_device *dev)
1047 {
1048 return device_create_file(&dev->dev, &dev_attr_umcast);
1049 }
1050
1051 static ssize_t create_child(struct device *dev,
1052 struct device_attribute *attr,
1053 const char *buf, size_t count)
1054 {
1055 int pkey;
1056 int ret;
1057
1058 if (sscanf(buf, "%i", &pkey) != 1)
1059 return -EINVAL;
1060
1061 if (pkey < 0 || pkey > 0xffff)
1062 return -EINVAL;
1063
1064 /*
1065 * Set the full membership bit, so that we join the right
1066 * broadcast group, etc.
1067 */
1068 pkey |= 0x8000;
1069
1070 ret = ipoib_vlan_add(to_net_dev(dev), pkey);
1071
1072 return ret ? ret : count;
1073 }
1074 static DEVICE_ATTR(create_child, S_IWUGO, NULL, create_child);
1075
1076 static ssize_t delete_child(struct device *dev,
1077 struct device_attribute *attr,
1078 const char *buf, size_t count)
1079 {
1080 int pkey;
1081 int ret;
1082
1083 if (sscanf(buf, "%i", &pkey) != 1)
1084 return -EINVAL;
1085
1086 if (pkey < 0 || pkey > 0xffff)
1087 return -EINVAL;
1088
1089 ret = ipoib_vlan_delete(to_net_dev(dev), pkey);
1090
1091 return ret ? ret : count;
1092
1093 }
1094 static DEVICE_ATTR(delete_child, S_IWUGO, NULL, delete_child);
1095
1096 int ipoib_add_pkey_attr(struct net_device *dev)
1097 {
1098 return device_create_file(&dev->dev, &dev_attr_pkey);
1099 }
1100
1101 static struct net_device *ipoib_add_port(const char *format,
1102 struct ib_device *hca, u8 port)
1103 {
1104 struct ipoib_dev_priv *priv;
1105 struct ib_device_attr *device_attr;
1106 struct ib_port_attr attr;
1107 int result = -ENOMEM;
1108
1109 priv = ipoib_intf_alloc(format);
1110 if (!priv)
1111 goto alloc_mem_failed;
1112
1113 SET_NETDEV_DEV(priv->dev, hca->dma_device);
1114
1115 if (!ib_query_port(hca, port, &attr))
1116 priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
1117 else {
1118 printk(KERN_WARNING "%s: ib_query_port %d failed\n",
1119 hca->name, port);
1120 goto device_init_failed;
1121 }
1122
1123 /* MTU will be reset when mcast join happens */
1124 priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu);
1125 priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu;
1126
1127 result = ib_query_pkey(hca, port, 0, &priv->pkey);
1128 if (result) {
1129 printk(KERN_WARNING "%s: ib_query_pkey port %d failed (ret = %d)\n",
1130 hca->name, port, result);
1131 goto device_init_failed;
1132 }
1133
1134 device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
1135 if (!device_attr) {
1136 printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
1137 hca->name, sizeof *device_attr);
1138 goto device_init_failed;
1139 }
1140
1141 result = ib_query_device(hca, device_attr);
1142 if (result) {
1143 printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
1144 hca->name, result);
1145 kfree(device_attr);
1146 goto device_init_failed;
1147 }
1148 priv->hca_caps = device_attr->device_cap_flags;
1149
1150 kfree(device_attr);
1151
1152 if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
1153 set_bit(IPOIB_FLAG_CSUM, &priv->flags);
1154 priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
1155 }
1156
1157 /*
1158 * Set the full membership bit, so that we join the right
1159 * broadcast group, etc.
1160 */
1161 priv->pkey |= 0x8000;
1162
1163 priv->dev->broadcast[8] = priv->pkey >> 8;
1164 priv->dev->broadcast[9] = priv->pkey & 0xff;
1165
1166 result = ib_query_gid(hca, port, 0, &priv->local_gid);
1167 if (result) {
1168 printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
1169 hca->name, port, result);
1170 goto device_init_failed;
1171 } else
1172 memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));
1173
1174 result = ipoib_dev_init(priv->dev, hca, port);
1175 if (result < 0) {
1176 printk(KERN_WARNING "%s: failed to initialize port %d (ret = %d)\n",
1177 hca->name, port, result);
1178 goto device_init_failed;
1179 }
1180
1181 INIT_IB_EVENT_HANDLER(&priv->event_handler,
1182 priv->ca, ipoib_event);
1183 result = ib_register_event_handler(&priv->event_handler);
1184 if (result < 0) {
1185 printk(KERN_WARNING "%s: ib_register_event_handler failed for "
1186 "port %d (ret = %d)\n",
1187 hca->name, port, result);
1188 goto event_failed;
1189 }
1190
1191 if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
1192 priv->dev->features |= NETIF_F_TSO;
1193
1194 result = register_netdev(priv->dev);
1195 if (result) {
1196 printk(KERN_WARNING "%s: couldn't register ipoib port %d; error %d\n",
1197 hca->name, port, result);
1198 goto register_failed;
1199 }
1200
1201 ipoib_create_debug_files(priv->dev);
1202
1203 if (ipoib_cm_add_mode_attr(priv->dev))
1204 goto sysfs_failed;
1205 if (ipoib_add_pkey_attr(priv->dev))
1206 goto sysfs_failed;
1207 if (ipoib_add_umcast_attr(priv->dev))
1208 goto sysfs_failed;
1209 if (device_create_file(&priv->dev->dev, &dev_attr_create_child))
1210 goto sysfs_failed;
1211 if (device_create_file(&priv->dev->dev, &dev_attr_delete_child))
1212 goto sysfs_failed;
1213
1214 return priv->dev;
1215
1216 sysfs_failed:
1217 ipoib_delete_debug_files(priv->dev);
1218 unregister_netdev(priv->dev);
1219
1220 register_failed:
1221 ib_unregister_event_handler(&priv->event_handler);
1222 flush_scheduled_work();
1223
1224 event_failed:
1225 ipoib_dev_cleanup(priv->dev);
1226
1227 device_init_failed:
1228 free_netdev(priv->dev);
1229
1230 alloc_mem_failed:
1231 return ERR_PTR(result);
1232 }
1233
1234 static void ipoib_add_one(struct ib_device *device)
1235 {
1236 struct list_head *dev_list;
1237 struct net_device *dev;
1238 struct ipoib_dev_priv *priv;
1239 int s, e, p;
1240
1241 if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
1242 return;
1243
1244 dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL);
1245 if (!dev_list)
1246 return;
1247
1248 INIT_LIST_HEAD(dev_list);
1249
1250 if (device->node_type == RDMA_NODE_IB_SWITCH) {
1251 s = 0;
1252 e = 0;
1253 } else {
1254 s = 1;
1255 e = device->phys_port_cnt;
1256 }
1257
1258 for (p = s; p <= e; ++p) {
1259 dev = ipoib_add_port("ib%d", device, p);
1260 if (!IS_ERR(dev)) {
1261 priv = netdev_priv(dev);
1262 list_add_tail(&priv->list, dev_list);
1263 }
1264 }
1265
1266 ib_set_client_data(device, &ipoib_client, dev_list);
1267 }
1268
1269 static void ipoib_remove_one(struct ib_device *device)
1270 {
1271 struct ipoib_dev_priv *priv, *tmp;
1272 struct list_head *dev_list;
1273
1274 if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
1275 return;
1276
1277 dev_list = ib_get_client_data(device, &ipoib_client);
1278
1279 list_for_each_entry_safe(priv, tmp, dev_list, list) {
1280 ib_unregister_event_handler(&priv->event_handler);
1281 flush_scheduled_work();
1282
1283 unregister_netdev(priv->dev);
1284 ipoib_dev_cleanup(priv->dev);
1285 free_netdev(priv->dev);
1286 }
1287
1288 kfree(dev_list);
1289 }
1290
1291 static int __init ipoib_init_module(void)
1292 {
1293 int ret;
1294
1295 ipoib_recvq_size = roundup_pow_of_two(ipoib_recvq_size);
1296 ipoib_recvq_size = min(ipoib_recvq_size, IPOIB_MAX_QUEUE_SIZE);
1297 ipoib_recvq_size = max(ipoib_recvq_size, IPOIB_MIN_QUEUE_SIZE);
1298
1299 ipoib_sendq_size = roundup_pow_of_two(ipoib_sendq_size);
1300 ipoib_sendq_size = min(ipoib_sendq_size, IPOIB_MAX_QUEUE_SIZE);
1301 ipoib_sendq_size = max(ipoib_sendq_size, max(2 * MAX_SEND_CQE,
1302 IPOIB_MIN_QUEUE_SIZE));
1303 #ifdef CONFIG_INFINIBAND_IPOIB_CM
1304 ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP);
1305 #endif
1306
1307 ret = ipoib_register_debugfs();
1308 if (ret)
1309 return ret;
1310
1311 /*
1312 * We create our own workqueue mainly because we want to be
1313 * able to flush it when devices are being removed. We can't
1314 * use schedule_work()/flush_scheduled_work() because both
1315 * unregister_netdev() and linkwatch_event take the rtnl lock,
1316 * so flush_scheduled_work() can deadlock during device
1317 * removal.
1318 */
1319 ipoib_workqueue = create_singlethread_workqueue("ipoib");
1320 if (!ipoib_workqueue) {
1321 ret = -ENOMEM;
1322 goto err_fs;
1323 }
1324
1325 ib_sa_register_client(&ipoib_sa_client);
1326
1327 ret = ib_register_client(&ipoib_client);
1328 if (ret)
1329 goto err_sa;
1330
1331 return 0;
1332
1333 err_sa:
1334 ib_sa_unregister_client(&ipoib_sa_client);
1335 destroy_workqueue(ipoib_workqueue);
1336
1337 err_fs:
1338 ipoib_unregister_debugfs();
1339
1340 return ret;
1341 }
1342
1343 static void __exit ipoib_cleanup_module(void)
1344 {
1345 ib_unregister_client(&ipoib_client);
1346 ib_sa_unregister_client(&ipoib_sa_client);
1347 ipoib_unregister_debugfs();
1348 destroy_workqueue(ipoib_workqueue);
1349 }
1350
1351 module_init(ipoib_init_module);
1352 module_exit(ipoib_cleanup_module);
Mirror for ia64_pv_ops.git